Variação da qualidade do leite cru refrigerado em função do período do ano e do tipo de ordenha

The present investigation aims at evaluating the quality of cooled raw milk stored in dairy farms during rainy and dry weathers. The collected samples were analyzed on SCC, TBC, centesimal composition, psychrotrophics count and titratable acidity; the variance analysis was employed for evaluating the observed data. The analyzed factors were weather period (rainy or dry) and milking procedure (manual or mechanical), in a random delineation and in factorial arrangement 2 x 2. The data comparison as per year period and milking technique was performed by means of variance analysis (F-test), using the SISVAR software. The TBC rate of cooled raw milk was over the limit established by the legislation in effect, which indicated the inadequate hygienic-sanitary quality of the cooled raw milk samples analyzed.